JP2002276097A - Installation structure of drain for waterproofing - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To be able to maintain a high waterproof performance around the drain for a long time, and to remove the strainer and the sheet pressing plate at the time of repair of the waterproof sheet, etc. to easily clean the waterproof sheet. Refurbishment can be performed, eliminating the need to replace the entire drain or use a refurbishment drain. SOLUTION: A sheet connecting plate 4 is integrally laminated on a top surface of a flange 1a of a drain body 1 with a fixed sealing material and / or an irregular sealing material interposed therebetween, and the upper surface of the sheet connecting plate is thermally welded to a waterproof sheet 5. Solvent welding was performed to integrate them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof drain installation structure installed on a roof when waterproofing a roof.

[0002]

2. Description of the Related Art In general, when a waterproof drain is installed on a flat roof, the upper surface of the flange of the drain body installed on the base body is formed of a synthetic resin sheet such as vinyl chloride or a natural or synthetic rubber sheet covering the flat roof. In addition to covering with the waterproof sheet, the sheet holding plate is overlapped on the waterproof sheet corresponding to the flange of the drain body, and fixed to the drain body flange with screws, and finally the strainer is attached to the drain body flange with screws ing. Therefore, when the drain port of the strainer or the drain body is clogged and needs to be cleaned, or when the waterproof sheet is to be repaired (repair of the rooftop waterproofing), the screw is removed and the strainer and the sheet holding plate are attached to the flange of the drain body. Once removed, the part corresponding to the flange of the drain body shifts because the waterproof sheet shrinks due to aging, and even if you try to screw it to the flange of the drain body again with the sheet holding plate, it will be pressed as specified In many cases, you will not be able to do it.

[0003] For this purpose, conventionally, the entire drain is replaced, or a repair drain whose drain is formed to have a diameter smaller than that of the existing drain is installed so as to be fitted into the existing drain, and the drain of the repair is provided. A new sheet holding plate was superimposed on the waterproof sheet corresponding to the flange, and fixed with screws. However, replacing the entire drain requires a considerably large-scale construction, which increases the construction period and cost, and the use of a repair drain causes a reduction in the effective drainage diameter, resulting in a decrease in drainage capacity.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of such a conventional problem, and it is possible to maintain a high waterproof performance around the drain for a long period of time and to provide a strainer and a drain main body. When drain holes are clogged and need to be cleaned, or when renovating the waterproof sheet (repair of roof waterproof), the strainer and sheet holding plate can be removed for easy cleaning and waterproof sheet repair. Accordingly, it is an object of the present invention to provide a waterproof drain installation structure that does not require replacement of the entire drain or use of a repair drain.

[0005]

In order to achieve the above object, a waterproof drain installation structure according to the present invention is characterized in that a sheet connecting plate is integrally superimposed on a flange upper surface of a drain main body installed on a base body, and the sheet connection plate is provided. The upper surface of the connection plate is covered with a waterproof sheet covering the flat roof, and the upper surface of the sheet connection plate is integrated by heat welding or solvent welding to the waterproof sheet,
Furthermore, a sheet pressing plate is superimposed on the waterproof sheet corresponding to the sheet connecting plate and fixed to a flange of the drain body with a screw, and a strainer is installed so as to cover a drain port of the drain body. (Claim 1). At this time, in order to achieve high waterproofness between the upper surface of the flange of the drain main body and the sheet connecting plate, it is preferable to interpose a regular sealing material and / or an irregular sealing material therebetween. Item 2). Further, the sheet connecting plate is formed of a resin material that is heat-welded or solvent-welded to the waterproof sheet so that high water tightness and integrity between the sheet connecting plate and the waterproof sheet can be maintained for a long time. (Claim 3) or a steel sheet formed by coating or laminating a resin material that is heat-welded or solvent-welded to a waterproof sheet on at least the upper surface side as the sheet connection plate (Claim 4).

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings. However, the present invention is not limited to the illustrated embodiment, and various variations are considered. Can be

The drain main body 1 is made of a material having a small change in material even when immersed in water, such as an aluminum die cast, a cast iron casting, a stainless steel plate, or a resin molding. It is formed in a substantially cylindrical shape having an installation flange 1a at an upper portion and having a predetermined inner diameter, and is fixedly installed on the foundation frame A of the flat roof such that the upper surface of the flange 1a is substantially flush with the surface of the foundation frame A. By the way, in the case of the illustrated embodiment, the main body upper component 1 ′ having the flange 1 a extended therefrom is formed by die-casting aluminum, and the upper component 1 ′ is formed of a hard vinyl chloride pipe formed to an appropriate length. 1 "are integrally connected to each other to form a drain main body 1 and fixedly installed on a base frame A of a flat roof using a plurality of clamp rods 2 and clamp plates 3 projecting downward from the lower surface of a flange 1a. I have.

Then, a sheet connecting plate 4 is integrally superposed on the upper surface of the flange 1a of the drain main body 1. still,
In the illustrated embodiment, the flange 1a of the drain main body 1 is formed in a circular flat plate shape (substantially donut shape). However, it may be formed in a substantially square shape, and is particularly provided at a corner where a rising wall surface of a flat roof intersects with a flat portion. What is done, flange 1
a is formed in a substantially L shape when viewed from the side, and is formed in a substantially square shape when viewed from the front.

The sheet connecting plate 4 is provided between the flange 1a of the drain main body 1 and the waterproof sheet 5 covering the flat roof to maintain high water tightness and integration with the waterproof sheet 5 for a long time, and is made of synthetic resin. Using a material, a metal plate, or the like, a thin donut plate shape having substantially the same shape as the flange 1a of the drain main body 1 is formed, and is superposed on the upper surface of the flange 1a of the drain main body 1 and integrally fixed with screws 6. At this time, in order to achieve high waterproofness between the upper surface of the flange 1a of the drain main body 1 and the sheet connecting plate 4, a standard sealing material and / or an irregular sealing material 7 are interposed therebetween. In other words, the fixed sealing material refers to a sealing material formed in a fixed thickness in a tape shape or a substantially donut plate shape, etc., and the undefined sealing material has an irregular shape from a soft syrup to a clay. In the case where a fixed sealing material formed into a substantially donut shape in accordance with the shape of the flange 1a of the drain main body 1 is used, the upper surface of the flange 1a of the drain main body 1 and the sheet connecting plate 4 are used. Although it is sufficient to interpose a fixed sealing material between them,
In the case where a fixed sealing material formed in a tape shape is used for the flange 1a of the drain main body 1 formed in a substantially donut plate shape, a gap between the tape-shaped fixed sealing materials cut to an appropriate length is formed. An irregular sealing material is interposed so as to be filled. As the regular sealing material and / or the irregular sealing material 7, those conventionally used as conventional sealing materials such as butyl rubber and silicone can be used. In actual construction, it is desirable that a fixed-type sealing material 7 is previously attached to the back surface of the sheet connecting plate 4.

The sheet connecting plate 4 is integrally bonded to the back surface of the waterproof sheet 5 with an adhesive so that high water tightness and integrity with the waterproof sheet 5 can be maintained for a long period of time. Or made of a resin material that is heat-welded or solvent-welded to the waterproof sheet 5, or heat-sealed or solvent-welded to the waterproof sheet 5 on at least the upper surface side (the surface opposite to the waterproof sheet 5). The sheet connecting plate 4 is heat-welded or solvent-welded to the waterproof sheet 5 using a metal plate material such as a steel plate formed by coating or laminating a resin material. Here, when the sheet connecting plate 4 is heat-welded or solvent-welded to the waterproof sheet 5, and when the waterproof sheet 5 is formed of, for example, vinyl chloride, the sheet connecting plate 4 itself is formed of vinyl chloride or at least the same. When a metal plate material such as a steel plate material (commonly referred to as a PVC steel plate) coated or laminated with vinyl chloride on the upper surface side is used, and when the waterproof sheet 5 is formed of, for example, an olefin resin material, sheet connection is performed. The plate 4 itself is formed of an olefin-based resin material, or a metal plate material such as a steel plate material coated or laminated with an olefin-based resin material on at least the upper surface side is used. The welded ends of the sheet connecting plate 4 and the waterproof sheet 5 are preferably sealed with an indefinite sealing material 7 ′ such as a butyl-based or PVC-based resin in order to prevent water from entering the portion. .

A sheet pressing plate 8 for pressing the waterproof sheet 5 from above and a strainer 9 for covering the drain port 1b of the drain body 1 are formed in the same manner as in the prior art. That is, the sheet holding plate 8 is made of a material such as an aluminum die-cast or cast iron casting or a stainless steel plate that is press-formed or resin-formed, and is formed in a thin and substantially donut shape having substantially the same shape as the sheet connection plate 4. Formed on the waterproof sheet 5 corresponding to the sheet connecting plate 4 and fixed to the flange 1a of the drain body 1 with screws 10. The strainer 9 is made of aluminum die cast or cast iron casting or stainless steel plate. Is formed into a required shape by using a material such as a press-molded or resin-molded material so as to prevent contaminants from entering the drain port 1b of the drain body 1 together with rainwater. It is installed so as to cover the drain port 1b, and is fixed to the flange 1a of the drain main body 1 with a screw 11. When the strainer 9 is fixed to the flange 1a of the drain body 1 with the screw 11, the sheet holding plate 8 is fastened together to fix the screw 10 for fixing the sheet holding plate 8 to the flange 1a of the drain body 1. It is possible to omit the use, and further, it is possible to omit the use of the sheet pressing plate 8 itself.

When the drain body 1 is newly installed, the installation hole B formed in the foundation body A of the flat roof is used.
Inside the drain body 1, the upper surface of the flange 1 a is
It is installed fixed so that it is almost flush with the surface. After that, the sheet connecting plate 4 having the fixed-side sealing material (and / or the irregular-shaped sealing material 7) attached to the back surface in advance.
Is placed on the upper surface of the flange 1a of the drain body 1 with the sealing material 7 side down, and is fixed to the upper surface of the flange 1a of the drain body 1 with the screw 6. Next, the upper surface of the sheet connecting plate 4 is covered with a waterproof sheet 5 covering the flat roof, and the upper surface of the sheet connecting plate 4 is covered with the waterproof sheet 5.
Then, the welded ends of the sheet connecting plate 4 and the waterproof sheet 5 are sealed with an irregular sealing material 7 '. After that, the sheet pressing plate 8 is superimposed on the waterproof sheet 5 corresponding to the sheet connecting plate 4, and the sheet pressing plate 8 is fixed to the flange 1a of the drain body 1 with the screw 10, and finally the strainer 9 is drained. It is installed so as to cover the drain port 1b of the main body 1 and the flange 1 of the drain main body 1 is fixed with a screw 11.
When it is fixed to a, the installation work of the drain is completed.

If the drainer 1b of the strainer 9 or the drain body 1 is clogged and needs to be cleaned, or if the waterproof sheet 5 covering the flat roof is to be repaired (repair of roof waterproofing), the screw 10 is required. And 11, the strainer 9 and the sheet holding plate 8 are detached from the flange 1a of the drain body 1, and the newly laid waterproof sheet is heat-sealed or solvent-bonded to the portion of the existing waterproof sheet 5 which was held by the sheet holding plate 8. Weld and integrate. Thereafter, the sheet holding plate 8 is overlapped on the waterproof sheet 5 corresponding to the sheet connecting plate 4 and fixed to the flange 1a of the drain main body 1 with the screw 10, and the strainer 9 is connected to the drain port 1b of the drain main body 1. Screw 11
And is fixed to the flange 1a of the drain main body 1.

[0014]

According to the waterproof drain installation structure of the present invention, the sheet connecting plate is integrally formed on the upper surface of the flange of the drain main body installed on the base frame by interposing the standard sealing material and / or the irregular sealing material. The upper surface of the sheet connecting plate is covered with a waterproof sheet covering a flat roof, and the upper surface of the sheet connecting plate is heat-sealed or solvent-welded to the waterproof sheet so as to be integrated. Since the sheet pressing plate is superimposed on the sheet and fixed to the flange of the drain body with screws, high waterproof performance around the drain can be maintained for a long time. In addition, when the drain port of the strainer or the drain body is clogged and needs to be cleaned, or when the waterproof sheet is modified (repair of the rooftop waterproofing), the sheet retainer plate is removed even if the strainer and the sheet retainer plate are removed. The portion of the waterproof sheet that has been pressed by the above is integrated with the sheet connecting plate by heat welding or solvent welding, and hardly shrinks even with aging. Therefore, even if the strainer and the sheet holding plate are removed, it is possible to fix the drainage hole of the strainer and the drain body easily with the screw again, as in the case of new construction, so that the drain port of the strainer and the drain body can be easily cleaned and the waterproof sheet can be removed. Refurbishment can be performed, so that there is no need to replace the entire drain or use a refurbishment drain.

[Brief description of the drawings]

FIG. 1 is a schematic view illustrating an embodiment of the present invention.

[Explanation of symbols]

A: Base body B: Installation hole 1: Drain body 1a: Flange
2: Clamp rod 3: Clamp plate 4: Sheet connection plate
5: waterproof sheet 6: screw 7: sealing material
8: Sheet holding plate 9: Strainer 10, 11: Screw

Claims (4)

[Claims] 1. A sheet connecting plate is integrally superimposed on the upper surface of a flange of a drain body installed on a base body, and the upper surface of the sheet connecting plate is covered with a waterproof sheet covering a flat roof, and the upper surface of the sheet connecting plate is covered with the above-mentioned sheet. The waterproofing sheet is heat-sealed or solvent-welded to be integrated, and furthermore, the sheet holding plate is superimposed on the waterproof sheet corresponding to the above-mentioned sheet connecting plate and fixed to the drain body flange with a screw, and the strainer is attached to the drain body. The installation structure of a drain for waterproofing characterized by being installed so as to cover a drain port of a waterproofing device. 2. The waterproof drain installation structure according to claim 1, wherein a fixed sealing material and / or an irregular sealing material is interposed between the upper surface of the flange of the drain body and the sheet connecting plate. 3. The waterproof drain installation structure according to claim 1, wherein the sheet connecting plate is formed of a resin material that is heat-welded or solvent-welded to the waterproof sheet. 4. The steel sheet formed by coating or laminating a resin material that is heat-welded or solvent-welded to the waterproof sheet at least on its upper surface side.
The installation structure of the waterproof drain described.